{"id":1769,"date":"2021-08-24T09:40:58","date_gmt":"2021-08-24T09:40:58","guid":{"rendered":"https:\/\/fr4material.com\/?p=1769"},"modified":"2021-08-25T03:47:02","modified_gmt":"2021-08-25T03:47:02","slug":"current-breakdown-plated-through-holes","status":"publish","type":"post","link":"https:\/\/fr4material.com\/index.php\/current-breakdown-plated-through-holes\/","title":{"rendered":"Current Breakdown, Plated Through-Holes"},"content":{"rendered":"<p>1.0 Scope To determine if the plated through-holes are sufficiently plated to withstand a relatively high current potential.<\/p>\n<p>2.0 Applicable Documents None<\/p>\n<p>3.0 Test Specimen Any plated through-holes on a test coupon or finished printed wiring boards.<\/p>\n<p>4.0 Apparatus Power supply capable of generating 10 amps and having a suitable load resistor.<\/p>\n<p>5.0 Procedure<\/p>\n<p>5.1 Test Select a load resistor, such that when the resistor shunts the positive and ground terminals at a regulated amperes power supply, a current of 10 amps will flow through each plated through-hole in the circuit in series with the resistor, for 30 seconds.<\/p>\n<p>5.2 Evaluation Examine for breakdown (opens) when the current is applied to each plated through-hole.<\/p>\n<p>6.0 Notes The power supply unit should have a safety interlock mechanism because of the relatively high current required for this test.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1.0 Scope To determine if the plated through-holes are sufficiently plated to withstand a relatively high current potential. 2.0 Applicable Documents None 3.0 Test Specimen Any plated through-holes on a test coupon or finished printed wiring boards. 4.0 Apparatus Power [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1769","post","type-post","status-publish","format-standard","hentry","category-knowledge"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - 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